$26.87

Collection of Antique Vintage Ruler Wood Celluloid GPO Stanley Faber-Castel Rule

$22.83

Vintage Stanley Allbrit Planimeter with Case & Instructions Magnified

$100

GLASS IMPRESSIONS Nuclear Power WOLF CREEK GENERATING STATION Etch PAPERWEIGHT

$10

Vintage 1971 Ryerson Data Book Steel Aluminum Special Metals Specs Weights Guide

$26.93

Vintage / Antique Technical Drawing Set Marked W.H.H. LD Draughtsman Kit

$121.19

Antique Wood & Brass Surveyor’s Rod Measuring Staff – Halden & Co Of Manchester

$20.2

Vintage PYTHAG Geometry Set Compass Drafting Instruments – Made in Germany

$16

Thew Lorain Ehrbar Inc. Pelham, Westbury NY Watch Fob Shl1A4-2

$25.57

Vintage Unique Log-Log Slide Rule Brighton Boxed British Engineering Calculator

$38.96

1930 Lehigh Cement Airport Construction Competition Frank Lloyd Wright Engineer

$3.5

Frederick Post Co Plastic Advertising Ruler Decimal Equivalent Chart Templates

$87.54

AG Thornton Techset Series Draightsman Set in Original Case